Adjusting structure of floor brush wheel

ABSTRACT

The present disclosure provides an adjusting structure of a floor brush wheel, which includes a bottom housing, a top housing, a transmission member, a first pulley assembly, and a second pulley assembly. The bottom housing and the top housing are fastened to form a receiving cavity. The transmission member is received in the receiving cavity and movably connected to the bottom housing. The first pulley assembly and the second pulley assembly are movably connected to the bottom housing, respectively. One end of the transmission member abuts against the first pulley assembly, and the other end of the transmission member abuts against the second pulley assembly. When the transmission member slides in a first direction, the first pulley assembly and the second pulley assembly are pressed by the transmission member to slide in a direction away from the bottom housing.

CROSS REFERENCE TO RELATED APPLICATION

The present disclosure claims priority to Chinese Patent Application No. 202120794463.5, filed Apr. 16, 2021, which is hereby incorporated by reference herein as if set forth in its entirety.

BACKGROUND 1. Technical Field

The present disclosure relates to the field of dust collector accessories, and particularly to an adjusting structure of a floor brush wheel.

2. Description of Related Art

A dust collector is usually used to clean floors and carpets and includes a main machine and a floor brush. When a floor is cleaned, a friction force between the floor brush and the floor is very small, and a user can easily drag the floor brush to clean. When a carpet is cleaned, particularly for some carpets with greater thickness, a friction force between the floor brush and the carpet is very large, such that the user is difficult to drag the floor brush to clean. In order to reduce the friction force between the floor brush and the carpet, the conventional floor brush is additionally provided with wheels at a bottom thereof, a friction force between the floor brush and the carpet and an air tightness between an air inlet of the floor brush and the carpet are reduced through the wheels, so that the floor brush has a good cleaning effect on the carpet. Due to the unable adjustment of height of the wheels, in order to make the floor brush after being additionally provided with the wheels keep the same clean ability to the floor, the wheels cannot protrude too much from the bottom of the floor brush, otherwise a gap between the floor brush and the floor will increase, resulting in the decrease of the suction force of the floor brush to the floor and poor cleaning effect. The wheels cannot protrude too much from the bottom of the floor brush, as a result, for some carpets with greater thickness, the friction force and the air tightness between the floor brush provided with the wheel and the carpet are still very large, the user is difficult to drag the floor brush to clean, and the cleaning effect is very poor.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in this embodiment disclosure, the drawings used in the embodiments or the description of the prior art will be briefly introduced below. It should be understood that, the drawings in the following description are only examples of the present disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative works.

FIG. 1 is a partial perspective view of an adjusting structure of a floor brush wheel according to the present disclosure.

FIG. 2 is a perspective view of a transmission member of the adjusting structure of the floor brush wheel according to the present disclosure.

FIG. 3 is another perspective view of the transmission member of the adjusting structure of the floor brush wheel according to the present disclosure.

FIG. 4 is a perspective view of a bottom housing of the adjusting structure of the floor brush wheel according to the present disclosure.

FIG. 5 is an enlarged view of a portion A in FIG. 4.

FIG. 6 is a perspective view of a first adjusting member of the adjusting structure of the floor brush wheel according to the present disclosure.

FIG. 7 is a perspective view of a second adjusting member of the adjusting structure of the floor brush wheel according to the present disclosure.

FIG. 8 is a perspective view of a first pulley assembly of the adjusting structure of the floor brush wheel according to the present disclosure.

FIG. 9 is a perspective view of a second pulley assembly of the adjusting structure of the floor brush wheel according to the present disclosure.

FIG. 10 is a cross-sectional view of the adjusting structure of the floor brush wheel according to the present disclosure.

FIG. 11 is an enlarged view of a portion B in FIG. 10.

FIG. 12 is another cross-sectional view of the adjusting structure of the floor brush wheel according to the present disclosure.

FIG. 13 is an enlarged view of a portion C in FIG. 12.

DETAILED DESCRIPTION

In order to make the objectives, technical solutions, and advantages of the present disclosure clearer, the present disclosure will be further described in detail below with reference to the drawings and embodiments. It should be understood that, the embodiments described herein are only for explaining the present disclosure and are not intended to limit the present disclosure.

Referring to FIGS. 1 to 13, the present disclosure provides an adjusting structure of a floor brush wheel, which includes a bottom housing 10, a top housing 20, a transmission member 30, a first pulley assembly 40, and a second pulley assembly 50. The bottom housing 10 and the top housing 20 are fastened to form a receiving cavity 60, and the transmission member 30 is received in the receiving cavity 60 and movably connected to the bottom housing 10. The first pulley assembly 40 and the second pulley assembly 50 are movably connected to the bottom housing 10, respectively. One end of the transmission member 30 abuts against the first pulley assembly 40, and the other end of the transmission member 30 abuts against the second pulley assembly 50. When the transmission member 30 slides in a first direction, the first pulley assembly 40 and the second pulley assembly 50 are pressed by the transmission member 30 to slide in a direction away from the bottom housing 10. When the transmission member 30 slides in a second direction, the first pulley assembly 40 and the second pulley assembly 50 are slidably restored in a direction approaching the bottom housing 10, and the first direction and the second direction are opposite.

Further, the first pulley assembly 40 is provided with a first wheel 44, and the second pulley assembly 50 is provided with a second wheel 54. Both the first wheel 44 and the second wheel 54 protrude from a bottom of the bottom housing 10.

In the present embodiment, when a floor brush with the adjusting structure of the floor brush wheel is used to clean a carpet, the transmission member 30 is slid in the first direction to adjust the height of the first wheel 44 and the second wheel 54 protruding out of the bottom of the bottom housing 10, so that the friction force and the air tightness between the floor brush and the carpet are reduced, and the floor brush can be easily dragged by a user to perform a carpet cleaning operation, and the cleaning effect is good. When a floor is cleaned, the transmission member 30 is slid in the second direction to restore the first wheel 44 and the second wheel 54, thereby bringing the floor brush closer to the floor and providing better cleaning effect.

Further, the first pulley assembly 40 is provided with a first inclined surface 41 and a first flat surface 42 connected to the first inclined surface 41. The transmission member 30 is provided with a second inclined surface 31 and a second flat surface 32 connected to the second inclined surface 31, at an end of the transmission member 30 adjacent to the first pulley assembly 40. The first inclined surface 41 abuts against the second inclined surface 31. When the transmission member 30 slides in the first direction until the first flat surface 42 abuts against the second flat surface 32, the transmission member 30 cannot continue to slide in the first direction.

Further, the second pulley assembly 50 is provided with a third inclined surface 51 and a third flat surface 52 connected to the third inclined surface 51. The transmission member 30 is provided with a fourth inclined surface 33 and a fourth flat surface 34 connected to the fourth inclined surface 33, at an end of the transmission member 30 adjacent to the second pulley assembly 50. The third inclined surface 51 abuts against the fourth inclined surface 33. When the transmission member 30 slides in the first direction until the third flat surface 52 abuts against the fourth flat surface 34, the transmission member 30 cannot continue to slide in the first direction.

Further, the transmission member 30 is provided with a receiving groove 35. The fourth inclined surface 33 is located in the receiving groove 35. The second pulley assembly 50 is partially received in the receiving groove 35, and the third inclined surface 51 abuts against the fourth inclined surface 33.

In the present embodiment, the second inclined surface 31 is parallel to the fourth inclined surface 33. The first inclined surface 41 is engaged with the second inclined surface 31, and the third inclined surface 51 is engaged with the fourth inclined surface 33. When the transmission member 30 slides in the first direction until the first flat surface 42 abuts against the second flat surface 32, the third flat surface 52 abuts against the fourth flat surface 34, the first inclined surface 41 disengages from the second inclined surface 31, the third inclined surface 51 disengages from the fourth inclined surface 33, and the first wheel 44 and the second wheel 54 have the maximum protrusion height.

The adjusting structure of the floor brush wheel further includes a first adjusting member 70 and a second adjusting member 80. The first adjusting member 70 and the second adjusting member 80 respectively extend through the transmission member 30 and abut against the transmission member 30. The first adjusting member 70 slides in a third direction to drive the transmission member 30 to slide in the first direction, at this case, the second adjusting member 80 slides in a fourth direction. The second adjusting member 80 slides in the third direction to drive the transmission member 30 to slide in the second direction, at this case, the first adjusting member 70 slides in the fourth direction. The third direction and the fourth direction are opposite.

In the present embodiment, the third direction is perpendicular to the first direction. The first adjusting member 70 and the second adjusting member 80 facilitate the user to control the transmission member 30 to slide.

Further, the first adjusting member 70 is provided with a fifth inclined surface 71. The transmission member 30 is further provided with a first positioning hole 36 extending through the transmission member 30, and the transmission member 30 is further provided with a sixth inclined surface 37 received in the first positioning hole 36. The fifth inclined surface 71 abuts against the sixth inclined surface 37.

Further, the second adjusting member 80 is provided with a seventh inclined surface 81. The transmission member 30 is further provided with a second positioning hole 38 extending through the transmission member 30, and the transmission member 30 is further provided with an eighth inclined surface 39 received in the second positioning hole 38. The seventh inclined surface 81 abuts against the eighth inclined surface 39.

In the present embodiment, the fifth inclined surface 71 is engaged with the sixth inclined surface 37, the seventh inclined surface 81 is engaged with the eighth inclined surface 39, and the sixth inclined surface 37 is disposed opposite to the eighth inclined surface 39. The first adjusting member 70 extends through the first positioning hole 36 to enable the fifth inclined surface 71 to abut against the sixth inclined surface 37, and the first adjusting member 70 is movably connected to the transmission member 30. The second adjusting member 80 extends through the second positioning hole 38 to enable the seventh inclined surface 81 to abut against the eighth inclined surface 39, and the second adjusting member 80 is movably connected to the transmission member 30.

Further, the bottom housing 10 is provided with two limiting members 11, the limiting members 11 are received in the receiving cavity 60 and fixedly connected to the bottom housing 10. Each of the limiting members 11 is provided with a supporting column 12 and hooks 13. A positioning cavity 14 is formed between the hooks 13 and the supporting column 12, and both ends of the transmission member 30 extend through the positioning cavity 14 and abut against the hooks 13, respectively.

In the present embodiment, the supporting column 12 abuts against the transmission member 30 and supports the transmission member 30, and the hooks 13 abut against the transmission member 30 to prevent the transmission member 30 from being separated out of the positioning cavity 14.

Further, the bottom housing 10 is further provided with a first receiving portion 15. The first receiving portion 15 is received in the receiving cavity 60. A first limiting column 16 is disposed on the first receiving portion 15. The first pulley assembly 40 is partially received in the first receiving portion 15 and movably connected to the first receiving portion 15. The first pulley assembly 40 extends through the first receiving portion 15 to enable the first inclined surface 41 to abut against the second inclined surface 31. The transmission member 30 is provided with a first sliding groove 311 at an end of the transmission member 30 adjacent to the first pulley assembly 40. The first limiting column 16 extends through the first sliding groove 311 and abuts against the transmission member 30.

Further, the adjusting structure of the floor brush wheel further includes a first elastic element 90. The first receiving portion 15 is provided with a first mounting groove 17 and a first through hole 18. The first limiting column 16 is provided therein with a second mounting groove 19 in communication with the first mounting groove 17. The first pulley assembly 40 is provided with a first positioning column 43. The first pulley assembly 40 is partially received in the first mounting groove 17, and the first positioning column 43 is partially received in the second mounting groove 19 and extends through the first elastic element 90. One end of the first elastic element 90 abuts against the first positioning column 43, and the other end of the first elastic element 90 abuts against a bottom wall of the second mounting groove 19. The first pulley assembly 40 extends through the first through hole 18 to enable the first inclined surface 41 to abut against the second inclined surface 31.

In the present embodiment, when the transmission member 30 slides in the first direction until the first flat surface 42 abuts against the second flat surface 32, the first pulley assembly 40 is pressed by the transmission member 30 to further protrude out of the first mounting groove 17, and the first pulley assembly 40 presses the first elastic element 90. The first elastic element 90 enables the first pulley assembly 40 to have a restoring force in an opposite direction, the restoring force acts on the transmission member 30, and the first limiting column 16 is away from an end of the first receiving portion 15 and abuts against the transmission member 30, so that the transmission member 30 is prevented from being deformed.

Further, the bottom housing 10 is further provided with a second receiving portion 111. The second receiving portion 111 is received in the receiving cavity 60. A second limiting column 112 is disposed on the second receiving portion 111. The second pulley assembly 50 is partially received in the second receiving portion 111 and movably connected to the second receiving portion 111. The second pulley assembly 50 extends through the second receiving portion 111 to enable the third inclined surface 51 to abut against the fourth inclined surface 33. The transmission member 30 is provided with a second sliding groove 312 at an end of the transmission member 30 adjacent to the second pulley assembly 40. The second sliding groove 312 is in communication with the receiving groove 35, and the second limiting column 112 extends through the second sliding groove 312 and abuts against the transmission member 30.

Further, the adjusting structure of the floor brush wheel further includes a second elastic element 100. The second receiving portion 111 is provided with a third mounting groove 113 and a second through hole 114. The second limiting column 112 is provided therein with a fourth mounting groove 115 in communication with the third mounting groove 113. The second pulley assembly 50 is provided with a second positioning column 53. The second pulley assembly 50 is partially received in the third mounting groove 113, and the second positioning column 53 is partially received in the fourth mounting groove 115 and extends through the second elastic element 100. One end of the second elastic element 100 abuts against the second positioning column 53, and the other end of the second elastic element 100 abuts against a bottom wall of the fourth mounting groove 115. The second pulley assembly 50 extends through the second through hole 114 to enable the third inclined surface 51 to abut against the fourth inclined surface 33.

In the present embodiment, when the transmission member 30 slides in the first direction until the first flat surface 42 abuts against the second flat surface 32, the second pulley assembly 50 is pressed by the transmission member 30 to further protrude out of the third mounting groove 113, and the second pulley assembly 50 presses the second elastic element 100. The second elastic element 100 enables the second pulley assembly 50 to have a restoring force in an opposite direction, the restoring force acts on the transmission member 30, and the second limiting column 112 is away from an end of the second receiving portion 111 and abuts against the transmission member 30, so that the transmission member 30 is prevented from being deformed.

By using the floor brush with the adjusting structure of the floor brush wheel, the user can slide the transmission member 30 according to actual needs to adjust the heights of the first wheel 44 and the second wheel 54 protruding from the bottom of the bottom housing 10, so that the friction force and the air tightness between the floor brush and the carpet can be reduced, and the user can drag the floor brush easily to perform a carpet cleaning operation, and the cleaning effect is good.

The above-mentioned embodiments are merely intended for describing but not for limiting the technical schemes of the present disclosure. Although the present disclosure is described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that, the technical schemes in each of the above-mentioned embodiments may still be modified, or some of the technical features may be equivalently replaced, while these modifications or replacements do not make the essence of the corresponding technical schemes depart from the spirit and scope of the technical schemes of each of the embodiments of the present disclosure, and should be included within the scope of the present disclosure. 

What is claimed is:
 1. An adjusting structure of a floor brush wheel, comprising: a bottom housing; a top housing, the bottom housing and the top housing being fastened to form a receiving cavity; a transmission member received in the receiving cavity and movably connected to the bottom housing; a first pulley assembly; and a second pulley assembly, the first pulley assembly and the second pulley assembly being movably connected to the bottom housing, respectively; wherein one end of the transmission member abuts against the first pulley assembly, and the other end of the transmission member abuts against the second pulley assembly; when the transmission member slides in a first direction, the first pulley assembly and the second pulley assembly are pressed by the transmission member to slide in a direction away from the bottom housing; and when the transmission member slides in a second direction, the first pulley assembly and the second pulley assembly are slidably restored in a direction approaching the bottom housing, wherein the first direction and the second direction are opposite.
 2. The adjusting structure of the floor brush wheel according to claim 1, wherein the first pulley assembly is provided with a first inclined surface and a first flat surface connected to the first inclined surface, the transmission member is provided with a second inclined surface and a second flat surface connected to the second inclined surface at an end of the transmission member adjacent to the first pulley assembly, the first inclined surface abuts against the second inclined surface, and when the transmission member slides in the first direction until the first flat surface abuts against the second flat surface, the transmission member is not capable of sliding in the first direction.
 3. The adjusting structure of the floor brush wheel according to claim 1, wherein the second pulley assembly is provided with a third inclined surface and a third flat surface connected to the third inclined surface, the transmission member is provided with a fourth inclined surface and a fourth flat surface connected to the fourth inclined surface at an end of the transmission member adjacent to the second pulley assembly, the third inclined surface abuts against the fourth inclined surface, and when the transmission member slides in the first direction until the third flat surface abuts against the fourth flat surface, the transmission member is not capable of sliding in the first direction.
 4. The adjusting structure of the floor brush wheel according to claim 3, wherein the transmission member is provided with a receiving groove, the fourth inclined surface is located in the receiving groove, the second pulley assembly is partially received in the receiving groove, and the third inclined surface abuts against the fourth inclined surface.
 5. The adjusting structure of the floor brush wheel according to claim 1, further comprising a first adjusting member and a second adjusting member, wherein the first adjusting member and the second adjusting member extend through the transmission member and abut against the transmission member, respectively; when the first adjusting member slides in a third direction to drive the transmission member to slide in the first direction, the second adjusting member slides in a fourth direction; when the second adjusting member slides in the third direction to drive the transmission member to slide in the second direction, the first adjusting member slides in the fourth direction, wherein the third direction and the fourth direction are opposite.
 6. The adjusting structure of the floor brush wheel according to claim 5, wherein the first adjusting member is provided with a fifth inclined surface; the transmission member is further provided with a first positioning hole extending through the transmission member, the transmission member is further provided with a sixth inclined surface received in the first positioning hole; the fifth inclined surface abuts against the sixth inclined surface.
 7. The adjusting structure of the floor brush wheel according to claim 5, wherein the second adjusting member is provided with a seventh inclined surface; the transmission member is further provided with a second positioning hole extending through the transmission member, and the transmission member is further provided with an eighth inclined surface received in the second positioning hole; the seventh inclined surface abuts against the eighth inclined surface.
 8. The adjusting structure of the floor brush wheel according to claim 1, wherein the bottom housing is provided with two limiting members, the limiting members are received in the receiving cavity and fixedly connected to the bottom housing; each of the limiting members is provided with a supporting column and hooks, a positioning cavity is formed between the hooks and the supporting column, and both ends of the transmission member extend through the positioning cavity and abut against the hooks, respectively.
 9. The adjusting structure of the floor brush wheel according to claim 2, wherein the bottom housing is further provided with a first receiving portion received in the receiving cavity; a first limiting column is disposed on the first receiving portion, the first pulley assembly is partially received in the first receiving portion and movably connected to the first receiving portion, the first pulley assembly extends through the first receiving portion to enable the first inclined surface to abut against the second inclined surface; the transmission member is provided with a first sliding groove at an end of the transmission member adjacent to the first pulley assembly, the first limiting column extends through the first sliding groove and abuts against the transmission member.
 10. The adjusting structure of the floor brush wheel according to claim 9, further comprising a first elastic element, wherein the first receiving portion is provided with a first mounting groove and a first through hole, the first limiting column is provided therein with a second mounting groove in communication with the first mounting groove; the first pulley assembly is provided with a first positioning column, the first pulley assembly is partially received in the first mounting groove, and the first positioning column is partially received in the second mounting groove and extends through the first elastic element; one end of the first elastic element abuts against the first positioning column, and the other end of the first elastic element abuts against a bottom wall of the second mounting groove; the first pulley assembly extends through the first through hole to enable the first inclined surface to abut against the second inclined surface.
 11. The adjusting structure of the floor brush wheel according to claim 4, wherein the bottom housing is further provided with a second receiving portion received in the receiving cavity; a second limiting column is disposed on the second receiving portion, the second pulley assembly is partially received in the second receiving portion and movably connected to the second receiving portion, the second pulley assembly extends through the second receiving portion to enable the third inclined surface to abut against the fourth inclined surface; the transmission member is provided with a second sliding groove at an end of the transmission member adjacent to the second pulley assembly, the second sliding groove is in communication with the receiving groove, and the second limiting column extends through the second sliding groove and abuts against the transmission member.
 12. The adjusting structure of the floor brush wheel according to claim 11, further comprising a second elastic element, wherein the second receiving portion is provided with a third mounting groove and a second through hole, the second limiting column is provided therein with a fourth mounting groove in communication with the third mounting groove; the second pulley assembly is provided with a second positioning column, the second pulley assembly is partially received in the third mounting groove, and the second positioning column is partially received in the fourth mounting groove and extends through the second elastic element; one end of the second elastic element abuts against the second positioning column, and the other end of the second elastic element abuts against a bottom wall of the fourth mounting groove; the second pulley assembly extends through the second through hole to enable the third inclined surface to abut against the fourth inclined surface.
 13. The adjusting structure of the floor brush wheel according to claim 1, wherein the first pulley assembly is provided with a first wheel, and the second pulley assembly is provided with a second wheel; both the first wheel and the second wheel protrude from a bottom of the bottom housing. 